What are the port specifications of the EX4300-32F?

The EX4300-32F includes 32 ports of 100/1000BASE-X SFP for Gigabit connectivity, 4 ports of 10GBASE-X SFP+ for 10 Gigabit uplinks, and 2 ports of 40GBASE-X QSFP+ for 40 Gigabit connectivity. All ports support hot-swappable transceivers, allowing flexible deployment of optical or copper modules based on network requirements.

What is the switching capacity and throughput performance?

The switch delivers 464 Gbps bidirectional switching capacity with 345 Mpps wire-speed throughput. This non-blocking architecture ensures simultaneous forwarding across all ports without performance degradation, making it suitable for high-density deployments and bandwidth-intensive applications.

Does the EX4300-32F support Virtual Chassis?

Yes. The EX4300-32F supports Virtual Chassis technology, enabling up to 10 switches to operate as a single logical device with 320 Gbps interconnect bandwidth. This provides seamless scalability, simplified management, and high availability through unified control plane and graceful Routing Engine switchover.

What is the maximum MAC address table size?

The EX4300-32F supports a maximum of 64,000 MAC addresses, accommodating large-scale deployments with thousands of connected devices. This capacity ensures consistent performance in enterprise networks without address table exhaustion.

What are the physical dimensions and power requirements?

The switch is a 1U rack-mount device measuring 17.4 x 1.7 x 16.4 inches (44.2 x 4.3 x 41.7 cm). It includes a 350W AC power supply with front-to-back airflow configuration, consuming approximately 150W under typical operation, making it suitable for space and power-constrained data center environments.

What Layer 3 routing and security features are supported?

The EX4300-32F supports Layer 3 routing with 32,000 IPv4 unicast routes and 18,000 IPv6 unicast routes. Security features include 802.1X authentication, RADIUS/TACACS+ support, MAC limiting per port and VLAN, and MACsec hardware-based encryption supporting 88 Gbps on Gigabit and 10 Gigabit ports.

What monitoring and management capabilities are available?

The switch supports comprehensive management via console, SSH, SNMP, and web GUI. Monitoring capabilities include sFlow, J-Flow, and syslog for traffic analysis and troubleshooting. It also supports 4093 VLANs, jumbo frames up to 9216 bytes, and graceful Routing Engine switchover for high availability.

EX4300-32F - Juniper EX4300-32F 464Gbps 32x1GbE+4x10G+2x40G

Name: Juniper EX4300-32F 464Gbps 32x1GbE+4x10G+2x40G
Brand: Juniper
SKU: EX4300-32F
Price: 572 USD
Availability: InStock

EX4300-32F - Juniper EX4300-32F 464Gbps 32x1GbE+4x10G+2x40G | US IT Hardware

Product overview

The Juniper EX4300-32F is a fixed-configuration Layer 3 Ethernet switch designed for enterprise campus and data center deployments. It features 32 ports of 100/1000BASE-X SFP connectivity, 4 ports of 10GBASE-X SFP+, and 2 ports of 40GBASE-X QSFP+ for flexible uplink options. The switch delivers 464 Gbps bidirectional switching capacity with 345 Mpps wire-speed throughput and supports up to 64,000 MAC addresses. With 4 GB flash storage and 3 GB DRAM with ECC, it provides robust performance for mission-critical networks. The EX4300-32F integrates Juniper's Virtual Chassis technology, enabling up to 10 units to operate as a single logical device with 320 Gbps interconnect bandwidth. Its 1U rack-mount form factor, front-to-back airflow design, and 350W AC power supply make it ideal for space-constrained environments. The switch supports comprehensive Layer 2/3 protocols, VLAN segmentation (4093 VLANs), jumbo frames (9216 bytes), and advanced security features including MAC limiting and 802.1X authentication.

464 Gbps switching capacity with 345 Mpps wire-speed
32x 1GbE SFP + 4x 10GbE SFP+ + 2x 40GbE QSFP+
Virtual Chassis: up to 10 units, 320 Gbps interconnect
64,000 MAC addresses, 4093 VLAN support
1U form factor, 350W AC PSU, front-to-back airflow
Layer 3 routing, 802.1X security, sFlow monitoring

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Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	EX4300-32F
Brand	Juniper
Condition	Refurbished
Model	EX4300-32F
Product Line	EX4300 line of Ethernet switches with Virtual Chassis technology
Product Type	Fixed-configuration Ethernet switch for data center, campus, branch
Supported Protocols	IEEE 802.1X, RADIUS, TACACS+, VLANs, static/dynamic routing
Management Interfaces	Console, SSH, SNMP, Web GUI
Logging and Monitoring	Syslog, sFlow, J-Flow
Compliance Certifications	FCC, CE, UL listed; TAA compliant variant available

Compatible systems

Virtual Chassis with up to 10 EX4300 switches; runs Junos OS

Best for

Campus Access
Deploy as primary access layer switch in enterprise campuses. The 32 1GbE SFP ports provide cost-effective connectivity for end-user devices, while 4x10G SFP+ and 2x40G QSFP+ ports enable high-speed uplinks to core infrastructure.
Data Center
Suitable for data center ToR (Top-of-Rack) or aggregation roles. 464 Gbps switching capacity and 345 Mpps throughput support high-density server connectivity with minimal latency, while Virtual Chassis scaling accommodates growth.
Branch Aggregation
Consolidate multiple branch office connections. Virtual Chassis technology allows up to 10 units to operate as one logical device, simplifying management and providing redundancy across distributed locations.
Network Virtualization
Support VLAN segmentation across 4093 VLANs with 64,000 MAC address capacity. Ideal for multi-tenant environments requiring traffic isolation and granular network control.

Frequently asked questions

Details

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DRAM	3 GB with ECC
Storage	4 GB

Packet Forwarding Engine	Single ASIC-based EX-PFE with integrated Routing Engine

Network & Communication

Data Rate	464 Gbps
Throughput	345 Mpps wire speed
Backplane Speed	320 Gbps Virtual Chassis interconnect (up to 10 units)
Forwarding Rate	Up to 480 Mpps
MAC Address Table	16,000 entries
Switching Capacity	464 Gbps (bidirectional); 232 Gbps unidirectional
Jumbo Frame Support	Up to 9216 bytes

Power Supplies	350 W AC PSU (fixed); Redundant hot-swappable PSUs supported
Maximum Power Consumption	150W

Weight	11.6 lbs (5.3 kg)
Dimensions	17.4 x 1.7 x 16.4 in (44.2 x 4.3 x 41.7 cm); Alternate: 17.5 x 1.7 x 14.2 in
Rack Units	1 RU
Form Factor	1U rack mount

Airflow	Front-to-back (AFO)
Operating Temperature	0 to 40°C (32 to 104°F)

Interface/Ports

Total Ports	46 (32 host + 4x10G + 2x40G + optional 8-port 1/10GbE uplink module)
10GBASE-X SFP+ Ports	4 ports
40GBASE-X QSFP+ Ports	2 ports; Up to 20 in Virtual Chassis (2 ports per switch for VCP)
100/1000BASE-X SFP Ports	32 ports

Juniper EX4300-32F 464Gbps 32x1GbE+4x10G+2x40G

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Storage

Processor

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports